Finely chopped onion stew with 2 tbsp olive oil until soft and browned. Season with dried oregano, salt and pepper. On a lightly oiled baking sheet place the sliced ​​eggplant and lightly smeared with olive oil. Bake in preheated oven until soft and lightly browned on both sides. Similarly fired sequentially sliced ​​zucchini and potatoes. In a greased baking dish arrange half the potatoes, so as to cover the bottom. 1/2 cup olive oil mixed with 2 tbsp chopped parsley 2 tbsp chopped fresh basil. This mixture is coated potato layer and sprinkle a little grated parmesan. Similarly rank consistently and other vegetables - onion, chopped peppers, tomato slices, courgettes and eggplants. Each layer is coated with zehtinovata mixture and sprinkle with Parmesan. Complete with potato layer. Cake form is placed on a baking dish (to prevent the oven from running). The dish is baked in a preheated 190 C oven for about 30 minutes. If the surface browned too quickly, cover with foil. The meal is consumed cooled to room temperature.